/Engine/Source/Runtime/Slate/Public/Framework/Notifications/NotificationManager.h
Called when a notification should be updated.
void UpdateProgressNotification ( [FProgressNotificationHandle](API\Runtime\Slate\Framework\Notifications\FProgressNotificationHandle) Handle, int32 TotalWorkDone, int32 UpdatedTotalWorkToDo, [FText](API\Runtime\Core\Internationalization\FText) UpdatedDisplayText )